Natal Chart – Enter Birth Data

☽ Natal Chart Calculator

Enter your birth details below. All calculations are performed locally in your browser using the Swiss Ephemeris. No data is sent to any server.

Name

Birth Date

Birth Time

If unknown, leave blank (noon will be used)

Birth Location

Used to look up coordinates automatically

Latitude

Longitude

UTC Offset (hours)

Standard time offset at birth (not DST-adjusted automatically)

House System

Tip: you can look up your coordinates and UTC offset at latlong.net. Historic DST rules vary — always verify the UTC offset for your exact birth date and location.